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23011121201 = 47948039919
BaseRepresentation
bin10101011011100100…
…011101100000110001
32012101200111002000012
4111123210131200301
5334111321334301
614323212104305
71443144205625
oct253344354061
965350432005
1023011121201
1198391a5a42
124562465095
132229484163
141184185185
158ea2a9ebb
hex55b91d831

23011121201 has 4 divisors (see below), whose sum is σ = 23059161600. Its totient is φ = 22963080804.

The previous prime is 23011121143. The next prime is 23011121251. The reversal of 23011121201 is 10212111032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23011121201 - 234 = 5831252017 is a prime.

It is a super-2 number, since 2×230111212012 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23011121251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24019481 + ... + 24020438.

It is an arithmetic number, because the mean of its divisors is an integer number (5764790400).

Almost surely, 223011121201 is an apocalyptic number.

It is an amenable number.

23011121201 is a deficient number, since it is larger than the sum of its proper divisors (48040399).

23011121201 is an equidigital number, since it uses as much as digits as its factorization.

23011121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48040398.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 23011121201 its reverse (10212111032), we get a palindrome (33223232233).

The spelling of 23011121201 in words is "twenty-three billion, eleven million, one hundred twenty-one thousand, two hundred one".

Divisors: 1 479 48039919 23011121201